Chinese Idiom: Nice on the Outside, Rotten on the inside
“The seemingly bright and colourful overcoat could not possibly cover up the patched underwear beneath.”
金玉其外, 败絮其中
jīnyùqíwài, bàixùqízhōng, or “gilded exterior, shabby and ruined on the inside (idiom)”, or my dictionary says “rubbish coated in gold and jade”.
